Valve.



A. J. TYLER.

VALVE.

APPLIOATION FILED MAR.17, 1909. 1,035,398. Patented Aug. 13,1912.

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A. J. TYLER.

VALVE, APPLICATION FILED MAR.17, 1909.

Patented Aug. 13, v 2 SHEETSSHEET 2. r cj- Y P AARON J. TYLER, or noonnsrnn, New roux.

VALVE.

Specification of Letterslatent. Patented Aug, 13,1912.

Application filed March 17, 1909. Serial No. 484,050.

To all it may concern:

Be it known that I, AARON J. TYLER, citizen of the United States, residing at Rochester, in the county of Monroeand State of New York, have invented certain new and useful Improvements in Valves, of which the following is a specification.

This invention relates to valves and more particularly 'to a valve or stop cock especially designed for use in curb boxes for controlling the flow of water, gas or other fluid from the city main to the service pipe. It is a well known fact that a slight tap or downward pressure imparted to the turning plugs or stop cocks, as at present constructed, causes the plug to wedge at its seat, with the result that the plug must be driven back before the same can be operated to control the flow of fluid through the Valve casing. This wedging or jamming of the plug in its seat invariably causes leakage and necessitates r'e-grinding of the plug to insure a tight joint between the parts.

- Moreover, where the stop cocks are positioned in curb boxes and similar inaccessible places, it is evident that considerable labor and expense is attendant upon the removal of the plug to effect necessary repairs thereto. Considerable tumble has also been experienced in retaining the stop cock in proper position to be engaged by a wrench or other tool, when it is desired to operate the same,'this displacement of the stop cock being due to the tendency of the latter to tilt or turn in the curb box.

The object of the invention is to obviate the above defects and to providev a strong, durable and thoroughly otticient stop cock in which liability of the turning plug jamming or wedging in its seat is positively eliminated.

A further object of the invention is to provide the valve casing with laterally extending pins or trunnions adapted to enter correspondingly shaped openings in the curb box, thereby to support the valve in the box and retain the head of the plug in position to be engaged by the operating key at all times.

A still further object of the invention is generally'to improve this class of devices so as to increase their utility, durability, and efiiciency.

Further objects and advantages will appear in the-following description, it being understood that various changes in form, proportions, and minor details of construct1on may be resorted to within the scopeott the appended claims.

For a full unerstanding of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for effecting the result, reference is to be had to the following description and accompanying drawings, in which:

Figure l is a vertical section view of a stop cock constructed in accordance with my invention; Fig. 2 is a horizontal sectional view of the same; Fig. 3 is a side elevation; Fig. 4 is a top plan view; Fig. 5 is'a side elevation of the turning plug detached, a top plan and a bottom plan of the turning valve being shown immediately above and below the same; Fig. 6 is a similar view looking at the ported side of the plug; Fig. 7 shows a bottom plan, top plan, side elevation, and sectional view respectively, of the locking nut; Fig. 8 represents a top plan, transverse section and side elevation'ot the stop washer detached; Fig. 9 represents a 'side elevation and top plan view of the lower compensatingwasher.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The improved turning plug forming the subject matter of the present invention comprises a valve casing 5 having oppositely disposed nipples 6, the interior walls of which are threaded at 7 for engagement with the correspondingly threaded ends of a liquid or fluid conducting pipe.

The valve casing 5 is provided with a tapered seat 8 in which is mounted for rotation a correspondingly tapered turning plug 5),tho latter being preferably hollow, as shown, and provided with oppositely (lisposod ports 10 adapted to register with the ports 11 in the valve casing, thereby to permit the passage of water or other fluid through said valve casing.

The upper or large end of the valve is provided with an extension or head 12,,preferably of angular formation, as" shown, and having its angular walls'slightly tapered 'for engagement with the correspondingly can readily ascertain whether the water or other fluid is turned off or on. The side walls of the head 12 are also preferably inclined or curved laterally at 14 to assist'in guiding the tool on the head and also to form abutments for the tool, thereby to limit the downward movement of said tool.

T he upper end of the valve, immediately below the head 12, is provided with exterior threads 15 for engagement-with a correspondingly threaded clamping nut 16, the

latter being adapted to bear against av washer 17 interposed between the lower face of the nut and the upper face or stop shoulder 18 of the valve easing, as bestshown in Fig. 1 of the drawings. The washer 1'2 by.

engagement with'the nut 16, serves to limit the downward movement of the turning plug 9 and thus prevent wedging or jamming of the turning plug in its seat when a slight tap or longitudinal pressure is exerted on the head 12,-as fol; instance, when positioning the operating tool thereon.

Attention is here called to the fact that the lower ,face of the clamping" nut 16 is spaced vertically from the annular shoulder-19 on the turning plug so as to permit a limited. vertical movement of the turning plug within its seat, thereby to assist in alining the ports 10 and 11 and also -to.insure the proper seating of the ,plug within the valve casing.

The lower end of the turning plug 9 is provided with a reduced portion 20 terminating in a threaded extension 21 for engagement with a correspondingly threaded nut 22. The walls of the seat 8 between the base of the reduced portion 20 and the lower end of the valve easing, are preferably. disposed parallel with each other for engagement with an annular boss or flange 23 of a lower washer, indicated at 24." The lower washer 24 is interposed between the nut 22 and the adjacent end of the valve casing and is adapted to' bear against said valve casing when the nut 22 is adjusted, thereby to hold the turning plug firmly to its seat and effectually prevent leakage between the parts. The interior walls of the nipples 6 at the ports-11, are preferably enlarged as shown at 25, in order to form aclearance nd thus facilitate the How of water through the valve casing when the turning plug is in open position.

Secured to or formed integral with the oppositesides of the valve casing, are bosses or enlargements 26 having trunnions 27 extending laterally therefrom and, provided with exterior threads 28 for engagement with correspondingly threaded nuts 29, said pins or trunnions being adapted to enter correspondingly shaped openings formed in the adjacent walls of a curb box, when the valve is used in this connection, and thus assist in supportingthe valve so as to prevent tilting or turning movement of the latter within the curb box. When the valve is positioned vin a curb box, the nuts 29 will so bear against the exterior, walls of the curb box and elampzthe valve casing within the same, so as to retain the, head 12 of the'turning plug in proper position to be engaged by the keyor operating tool 'atall times. 35 The trunnions li also permit the valve casing to be tilted or turned slightly when ne'c essary to properly aline the 'same, the valve casing being looked. in rigid position by adjusting the nuts 29. If desired however, the trunnions and clamping nut-s may be dispensed with, or a single trunnion may be employed for supporting the valve easing ;within the curb box, andv in somecases,

either one or both trunnions maybe utilized for supporting the valve casing without the, employment of either nut.

The transverse rib 13 may be in the form shown in Fig. 4 of "the drawings, that is to say, with its intermediate portion provided with a circular enlargementfgtl, or of the construction shown Fig, 6 of the drawings,.in which the opposite walls" of the rib are substantially parallel throughout the entire length thereof.

- The turning plug 9 is preferably formed with oppositely disposed flat portions 26 for engagement withcorrespondingly flat portions 27, formed on the washer'17, thereby to lock the washer on the valve and thus cause the two to turn together when the valve is moved to open and closed'positions. Thusit will be seen thatthe impact of a tap or blow imparted to the head 12 will be received upon the washer 17, which in turn bears against the upper end of the valve casing so as to eifectually prevent wedging or jamming of the valve in its seat and thus insure perfect operation of the valve under all'conditions, the trunnions 27 serving to assist in supporting the valve and maintaining the head of the turning plug in 7 proper position to be engaged by an operating tool, as before statet I Whilevthe valve'is described inf'connection with curb box, itwill of course beunderstood that its range of iisefulness is not limited to curb boxes, but; thgtithe same may befill lit

used with equally good results for controlling the flow of fluid through fall kinds of conductors andfor other purposes without departing from the spirit of the invention.

Having thus described the invention, what is claimed as new is:

l. A valve including a casing having a tapered valve seat, a tapered valve engaging the seat, and means carried by the large end of the valve to engage the casing immediately adjacent the valve seat for preventing wedging of the valve in its seat, said means being actuated to adjust the valve to its seat without removin the valve from the casing and being movab e with the valve.

2. A valve including a casing having a tapered valve seat, a tapered valve engag ng the seat, a nut carried by the large end of the valve, and means-interposed between the nut and valve casing immediately adjacent the valve and the valve seat for preventing wedging of the valve in its seat, said means being actuated to adjust the valve to its seat without removing the valve from the casing and being movable with the valve.

3. A valve including a casing having a tapered valve seat and provided with a plane upper face-around the valve seat, a tapered valve engaging the seat, a nut carried by the large end of the valve, and a washer interposed between the nut and upper end of the valve casing and having a plane under face bearing upon the plane upper face of the casing for. preventing wedging of the valve in its seat, said washer being actuated to adjust the valve to its seat without removing the valve from the casing and being movable with the valve.

4. A valve including a casing having a tapered valve seat and a plane upper end,

tapered valve engaging the seat and having its intermediate portion exteriorly threaded, a nut engaging the threaded portion of the valve at the large end thereof, and a washer having a plane under face and interposed between the nut and the plane upper end of the valve casing for preventing wedging of the valve in its seat, said washer being actuated to. adjiist the valve to its seat without ren'ioving the valve from the casing and being movable with the valve.

5. A valve including a casing having a tapered valve seat, a tapered valve engaging the seat and provided with a flat portion, a clan'iping nut threaded on the large end oi the valve, and a usher interposed between the clamping; nnl and valve casing and having a correspondingly flat portion for engngzcinenl with the tint portion of the valve. said washer serving to prevent Wedging of/ the valve in its seal and being actuated a) adjust the valve to its seat without reinoviiig said valve l'roin the casing.

A valve including: a casing having a threaded on the valve at the large end thereof, and a washer movable with the valve and interposed between the nut and valve casing, said washer being actuated to adjust the valve to its seat without removing the valve from the casing.

7. A valve including a casing having a tapered valve seat, a valve engaging the seat and provided with aterminal tapered head, there being threads formed on the valve below the head, a clamping nut engaging-said threads, and a washer interposed between the nut and casing and mounted forrotation with the valve for preventing wedging of the valve in its seat, said washer being actuated to adjust the valve to its seat without removing the valve from the casing. i

8. A valve including a casing having a tapered seat, the walls of which are disposed parallel for a portion of the length of said seat, a correspondingly tapered valve engaging the seat and having its upper end threaded and provided with a terminal head of ngular formation, a clamping nut threaded n the valve beneath the head thereof,'a washer interposed between the clamping nut and upper end of the valve casing and mounted'for rotation with the valve, means carried by the lower end .of the valve for preventing withdrawal of the latter, and a washer interposed between the retaining means and the lower end of the casing and provided with a laterally extending boss adapted to bear against the parallel walls.

of the valve seat. I

9. A valve including a casing having oppositely disposed trunnions for attachment to a support and provided with a valve seat, and a. valve engaging said seat.

10. A valve including a casing having oppositely disposed threaded trunnions for engagement with a support and provided with a valve seat, a valve engaging the seat, and clamping nuts threaded on said trunnions and adapted to engage the support for preventingtilting movement of said valve casing with respect to the support.

11. A valve including a casing having oppositely disposed trnnnions, the terminals of which are threaded, said casing being provided with a valve seat, a valve engaging snid seat. means for preventing wedging of the valve within the seat, and clamping nuts threaded on the trunnions and adapted to bear against a support for preventing turning movement of the valve with relation to said support.

12. I-'\ valve having a valve casing and provided with a laterally extending trunnion for r iigz1gc1i1c1it with a support, a valve a 1mm threaded portion terminating in an imgu: n ese ce of two witnesses.

larly disposed head a clampin nut engage ing the threads on ihe valve, 531d a washer AARON L en a in the eat and )rovided with a v In esbimon whereofI afiix mv si nature g b g 1 y 1: 7

; interposed between the clamping nut and WitheSsQS;

adjacent and of the valve casing for pre- N. Woopson', venting wedging of the valve in its seat. SAMUEL N, ACKER. i 

